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HomeMy WebLinkAbout20091002 Ver 1_More Info Received_20091123t? `y November 19, 2009 Wilkesboro Hydroelectric Company, LLC Hydro Development P.O Box 143 Mayodan, NC 27027 336 589-6138 ph@piedmonthydropower.com RE: DWQ# 09-1002 Wilkes County W. Kerr Scott Hydropower Project Section 401 Permit Application Sue Homewood North Carolina Division of Water Quality Winston-Salem Regional Office 585 Waughtown St. Winston-Salem North Carolina 27107 Ian McMillan North Carolina Division of Water Quality Wetlands/401 Certification Unit 1650 Mail Service Center Raleigh, NC 27699-1650 Q[22 @ [N-1 NO I Nov 2 3 zoos DENR - WATER QUALITY WETLANDS AND STQRMWATER BRANCH Please find attached the competed page 12 of the Pre-construction Notification Form and several drawings that better show how the project will interface with the existing river. The Yadkin River in the area where the powerhouse will discharge into the river appears to be man made from the dam's existing discharge basin to the point where Fish Dam creek joins the river several hundred feet downstream. The original riverbed lies approximately 100 feet north of where the river is today. Due to this, the banks of the river where the powerhouse will discharge into the river are steep and covered in large rip rap and have no wetland characteristics. Therefore this project will not be excavating or filling any wetlands area. The total area of uplands that will be disturbed by this project is less than 0.5 acre and the use of silt fences and seeding will be used to minimize any erosion that might occur from entering the river. The powerhouse will be built on uplands, and only when the plant is ready to be connected to the river will the cofferdam be removed and the discharge channel excavated. A proper silt curtain will be used during this excavation to minimize the sediment from entering the river. The use of filter cloth and a heavy blanket of large riprap prior to the silt curtain being removed will protect the area excavated from erosion. Please let us know if there is any other information that you need to issue this permit. If you would like to have a meeting, I will be in North Carolina for the first two weeks in December. Respecfully, Dean Edwards Wilkesboro Hydroelectric Company PO Box 143 Mayodan, NC 27027 E. Stormwater Management and DtffuseFlow Plan Iraq utrod by D1rV'Q} 1 Diffuse Flaw Plan is D?x-a c- aroJE?-: E'?6;oe or xi r agjax7 m aro:F--miO rlaarsa` D_"trs 0 Yea ®4o wr.-i- 0'e 0':"e ?,v R4 Darla. 3 der 32'rF? 4a- Rt ,*a" 1D 1,*s -e, is a V?.sc-ID-tv Dal o Yea 0 1,o Co'n ^ie- s F Stormwater management Plan Zs A. 4 4:1eoverV aer.?e- i^laerAo__sless(f-ssM* 1b7`n Za Doe5 :'So aro)i r>r'. Ire a Smr nwa:Er +.'a" age-* v ma, E3 Yes M %0 Zv -is orgA DES % OT rF., J ire a Smrmv.akr Val agc-* 7 Plan s.,Q 9? 'A1 'r TPie p1E"fia6 an tnpffaw sea of teas lean 3400 WAWe 1W Wd eDngG WM wN OWO 1S ftn 12 a= Of tarici. 'Is DrO F: FOES rec.irE a 5707 f UE'S' P,'a`'=yE : ?1a ` : • _' DrOliCS a a'dF "., M-M!* oFSar€a:ro^ rf :-e ala' O :s'rr9E<c '_Daas Ga'r` ^ie`: 2e N,o `viII ae reb ao^8ia`e'br-e re'J"F'A' a, :'e .3.0^7", Eer f'.3 -.:1; C_ ITT ODAGd31v .. 5 Certified Lc a l Government Stormwater Revlaw a`s `Tf^Y'? 1].^.aiy4'JEr "lE `.0._";54`u?ta` 5:'?6'J^ajF? o D -ass 30 cr-e-olkmi`ty +}:3?t ;^l^ic- '1 C':eG o:ori 1a:er'l a-aye-f s- ?rog --is O %S ax)k. ^E ( ?'ij 73, a:)W" 17 3A'D Aarirs-ec o ' r 3c -aa:"e aaaro*c -or'Rtra}_r Ys apse- 3r0o' O'axroaja' see" 0 YFS 17 %o 4 DU'JQ Stormweter Program Review O Coaa:ai of 7,es 0 -GA 4a 0'7e sa.aa,,;:,- a?.e-^7a e'xc,s:or*?A° :e ?a-a e y IE :arv;ra^u aaDi; 13 ORN yak ai :` a• a as 0 seams- ZXI5 245 O Cc-er !a -aa ' c 3rro"OS.Or^1Yia er P.'a'ay'e^IE`G X98' '?46' aroo'9' aaaro'A lee' a`3a "e?} O Yea `,sa 5. DVM441 Unit Stormwater Reviaw 5a Does :neSor^iwaerManage a,aaoro ariss%-re=:?irs-eT:sl O Y'ea O ',o 5a -aveallo'7esol . rs_,D- :ai rs.,;re-e-s x-e~ O Yea 13 % o ff,